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Vi.Plenario1: Conferencia Rafael F.S. Caldeirinha "Radiowave propagation in wildfires"
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Electromagnetic study of complex permittivity on a medium-scale flat terrain fire scenario 1Instituto de Telecomunicações and Polytechnic of Leiria, Portugal; 2Instituto Superior Tecnico, University of Lisbon, Portugal In this paper, a range of complex permittivity estimated from a flat terrain composed of Pinus Pinaster fuel bed on fire is studied. It was used the Fire Dynamics Simulator (FDS) to implement the fire environment and the Cold Plasma Model (CPM) was applied to evaluate the complex permittivity of the medium. Effects of maximum and minimum permittivities for the considered time step were explored using the Finite-Difference Time-Domain (FDTD) method, in order to understand the impact of a weakly ionised plasma generated during vegetation combustion, on radiowave propagation.
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